[swift-users] SwiftProtobuf unable to link on Ubuntu

[Edward Connell]

Hi Geordie,
That is actually a capital "I" eye for import
This font make an eye and elle look the same. This is the build line I am
trying to use.

swift build -Xswiftc -I/home/ed/swift-protobuf/.build/release -Xlinker
-L/home/ed/swift-protobuf/.build/release

On Sat, Oct 14, 2017 at 1:00 PM, Geordie J <geojay at gmail.com> wrote:

> Hi
>
> Am 14.10.2017 um 21:55 schrieb Edward Connell via swift-users <
> swift-users at swift.org>:
>
> Has anyone used the SwiftProtobuf module on Linux?
> https://github.com/apple/swift-protobuf
>
> I am able to successfully generate swift classes from my proto file.
> However when building, the code compiles but I get a ton of undefined link
> references.
>
> I included -Xswiftc -I/home/ed/swift-protobuf/.build/release so the
> module is found, but still….
>
>
> This should be "-Xlinker” rather than “-Xswiftc”, and also “-l” is for
> specifying system library names (e.g. "-latomic”). I’m pretty new to this
> but I think the correct flag is “-L”.
> So in the past I have used “-Xlinker -L/path/to/libs”, but I’ve recently
> read you can actually leave off “-Xlinker” and just have the “-L” bit.
>
> Hope that helps.
>
> - Geordie
>
>
> ------------------------
> /home/ed/Documents/prototest/Sources/DataModel.pb.swift:31: error:
> undefined reference to '_T013SwiftProtobuf14UnknownStorageVACycfC'
> /home/ed/Documents/prototest/Sources/DataModel.pb.swift:31: error:
> undefined reference to '_T013SwiftProtobuf14UnknownStorageVACycfC'
> /home/ed/Documents/prototest/Sources/DataModel.pb.swift:64: error:
> undefined reference to '_T013SwiftProtobuf14UnknownStor
> ageV8traverseyxz7visitor_tKAA7VisitorRzlF'
> /home/ed/Documents/prototest/Sources/DataModel.pb.swift:0: error:
> undefined reference to '_T013SwiftProtobuf7MessagePAAE13isInitializedSbfg'
>
> etc...
>
> Does anyone have a simple working example on Ubuntu?
>
> Ubuntu 16.04
> Swift 4.0 release
>
> Thanks, Ed
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